[Material]: 304 stainless steel for the real， rational design; workmanship; strict processing each part. Top round， not to hurt the urethra， but to the rational use， folds have medical rubber protective sleeve 

[Size] 13cm long straight outside the arc length of about 9.5cm， diameter of about 3cm total weight of 0.25kg 

Snap ring size 4.3cm (can be customized 3.7cm， 4.7cm) 

Cannula (diameter 6 mm， straight length of about 65 mm， the middle is a hollow tube) 

Our products and distinguishes it from other inferior goods (after into saline) 

Also offers small shop with a catheter CB3000， detailed information， please click on the following picture:

How to measure the size of the snap ring 

1 soft tape measure with a tape measure or a penis， you can read. - 

2 go to the hardware store to buy a steel pipe inside diameter 50MM hoop， set in the heel of the penis， with a Phillips screwdriver to tighten transferred to adapt itself to the size， can take several hours to adapt to， and determine if adapted and customized to your the diameter of the wire hoop tuned， there will be a mark in the screw， screwed to take down the sign at the amount of clamp diameter with a ruler can.